CN103485328A - Method for performing ecological reinforcement on soil slope surface by utilizing composite curing agent - Google Patents
Method for performing ecological reinforcement on soil slope surface by utilizing composite curing agent Download PDFInfo
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- CN103485328A CN103485328A CN201310436492.4A CN201310436492A CN103485328A CN 103485328 A CN103485328 A CN 103485328A CN 201310436492 A CN201310436492 A CN 201310436492A CN 103485328 A CN103485328 A CN 103485328A
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Abstract
The invention discloses a method for performing ecological reinforcement on the soil slope surface by utilizing a composite curing agent. The method is characterized by comprising steps that a polymer curing agent, mud, water and grass seeds are mixed in proportion to form the composite curing agent, the composite curing agent is sprayed on the soil slope surface to form a curing layer with thickness of about 5-15cm on the soil slope surface, and after plants grow up, the curing layer and root systems of the plants work synergistically to achieve the ecological reinforcement on the soil slope surface. The curing layer has functions of being good in anti-scouring performance, windproof performance and water stability, breathable, capable of holding water and facilitating growth of the plants and the like, and is convenient to construct, low in cost, strong in practical applicability, ecological, and capable of protecting the environment. The method can be widely applied to ecological reinforcement on the soil slope surfaces of roads, bands and the like, further be applied to fields of mining area ecological restoration, engineering area ecological management and the like and be especially suitable for large-scale environmental building construction work, and has good social benefit and economic benefit.
Description
Technical field
The invention belongs to the environmental engineering technical field, particularly relate to a kind of composite curing agent to the domatic ecological method of reinforcing of soil-slope.
Background technology
Strengthen environmental protection is a significant task that advances socio-economic development.In the work progress of the infrastructure such as highway, railway, water conservancy, mine, the destruction of former landforms vegetation is inevitable, spoir, abandons the meetings such as stone, excavation and stays a large amount of bare side slopings to harmonious natural environment.The slope reinforcing method mainly contains engineering reinforcement and reinforced by plants.Engineering reinforcement usually adopts and wipes one's face, beats the forms such as face, whitewashing, hook (filling) seam, domatic revetment, but the method generally is only applicable to the sty of unsuitable vegetation growth, for soil-slope, can't realize ecological the reinforcing.Vegetation is reinforced general the employing and litters, plants grass and plant shrub (trees) form, though being applicable to the ecology of soil-slope, the method reinforces, but before vegetation growth or the zone of vegetation sparse, still there are the problems such as the erosion caused by sloping surfaces, soil erosion in the domatic soil body, even can affect to a great extent the growth of vegetation.Polymeric consolidator is as a kind of soil fixation material of novel environment friendly, and the advantages such as the amount of participating in is less because having, convenient transportation, construction are simple, ecological, environmental protective receive much concern.
Chinese patent application 200710021619.0 has proposed " ecological soil stabilizer and preparation method thereof ", and this ecological soil stabilizer comprises water or deionized water, comonomer 1: vinylacetate, comonomer 2: methyl methacrylate or with comonomer 3; Comonomer 3: acrylate; Polyvinyl alcohol; Emulsifier sodium lauryl sulfate or with OP2-4 or be; Initator (persulfate)., though but the method has advantages of good environment fitness and Promoting plant growth, also have the following disadvantages: the one, the curing compound liquid viscosity is larger, the permeability extreme difference, the cured layer of domatic formation as thin as a wafer, can not meet domatic curing requirement generally; The 2nd, hardening time is extremely long, is difficult to guarantee solidification effect in practical operation; The 3rd, the cured layer poor water retention property, easily dry and cracked, affect vegetation growth.
Chinese patent application 201110106789.5 has proposed " a kind of polyurethane-based ecological sand-fixing agent and preparation method thereof ", this sand-consolidating agent is by base polyurethane prepolymer for use as, dispersion stabilizer and solvent composition, base polyurethane prepolymer for use as is obtained by polymer polyatomic alcohol and vulcabond polycondensation reaction, polymer polyatomic alcohol is comprised of Polyoxypropylene diol, polyoxyethylene glycol and easy degradation polymer glycol, the mass ratio of Polyoxypropylene diol and polyoxyethylene glycol is 1: 3～5: 1, and easily the degradation polymer glycol accounts for 13～23% of polymer polyatomic alcohol gross mass; The mass ratio of polymer polyatomic alcohol and vulcabond is 4: 1～7: 1.Though the method has advantages of good high microthermal climate compliance and resistance to ag(e)ing, also has the following disadvantages: the one, the curing compound shelf-life is short, is difficult in practice preserve; The 2nd, hardening time is extremely short, within its hardening time, has been difficult to construction, will directly affect construction quality; The 3rd, the cured layer thin thickness, be difficult to meet the slope reinforcing requirement.
Chinese patent application 201110106794.6 has proposed " a kind of dustproof sand-fixation method ", and the method is by the polyurethane-based ecological sand-fixing agent dilute with water, and the weight percent concentration of base polyurethane prepolymer for use as is 0.5～5%; Then the sand-consolidating agent dilution is sprayed on sandy soil, forms cured layer on the sandy soil top layer; Wherein, the active component of described polyurethane-based ecological sand-fixing agent is base polyurethane prepolymer for use as, described base polyurethane prepolymer for use as is obtained by polymer polyatomic alcohol and diisocyanate cpd polycondensation reaction, described polymer polyatomic alcohol is comprised of Polyoxypropylene diol, polyoxyethylene glycol and easy degradation polymer glycol, the mass ratio of Polyoxypropylene diol and polyoxyethylene glycol is 1: 3～5: 1, and easily the degradation polymer glycol accounts for 13～23% of polymer polyatomic alcohol gross mass; The mass ratio of polymer polyatomic alcohol and diisocyanate cpd is 4: 1～7: 1, the mixture that described easy degradation polymer glycol is poly-epsilon-caprolactone glycol, polylactic acid diol or its arbitrary proportion.Though the formed cured layer of the method has the advantages such as good antiscour and wind erosion-resistance performance, also has the following disadvantages: the one, hardening time is extremely short, has been difficult to construction within its hardening time; The 2nd, the cured layer thin thickness, be difficult to meet the slope reinforcing requirement; The 3rd, curing compound dilution is sprayed directly on the sandy soil that broadcast sowing after the vegetation grass seeds, easily causes the displacement of grass seeds, slope vegetation distributing homogeneity extreme difference.
In sum; how to overcome the deficiencies in the prior art; effectively solve in environment exploitation is built; because the soil soil property that excavation causes that ecosystem is unbalance, natural vegetation damages or exposed soil-slope occurs is loose, water content reduction, easy-weathering, easily cause the disaster problem such as the erosion caused by sloping surfaces, soil erosion, slope body cave in, river obstruction, landslide, water pollution, become one of emphasis difficult problem of urgently capturing in current environmental engineering technical field.
Summary of the invention
The present invention seeks to provides a kind of composite curing agent to the domatic ecological method of reinforcing of soil-slope for overcoming the deficiencies in the prior art, cured layer of the present invention has good scour resistance, wind resistance, water stability, and water conservation, ventilative, be beneficial to the functions such as vegetation growth, practical.
A kind of composite curing agent that the present invention proposes, to the domatic ecological method of reinforcing of soil-slope, is characterized in that comprising the following steps:
Step 1, domatic leveling: adopt machinery or manually to natural side slope or Artificial Side-slope, have obvious coombe or out-of-flatness place to carry out domatic leveling;
Step 2 adds the solid-liquid preparation: at first by mass percentage: 5-20% polymeric consolidator, 5-10% mud and 70-90% water are evenly mixed, then with the grass seeds uniform stirring, form composite curing agent, wherein the addition of grass seeds is 25-35g/m
2domatic;
Step 3, add solid-liquid and spray: the composite curing agent that step 2 is obtained is by 4-5L/m
2it is domatic upper that domatic sprinkling amount is sprayed at soil-slope, makes the domatic upper formation cured layer of soil-slope;
Step 4, the side slope maintenance: provide sufficient moisture before and after grass seeds germinates, impel vegetation growth, the cured layer synergy that makes vegetation root system and step 3 obtain, thus realize domatic ecological reinforcing of soil-slope;
Step 5, assessment is safeguarded: step 4 is realized to the ecological consolidation effects such as the domatic damaged condition of soil-slope after ecological reinforcing the, vegetation growth situation carry out periodical evaluation, to append maintaining.
The present invention realizes that the mechanism of ecological Gu Po is: the deficiency of using single polymeric consolidator for overcoming prior art, the solid-liquid that adds of the present invention has adopted composite curing agent, because of composite curing agent and the domatic compatibility of soil-slope good, so composite curing agent be sprayed at soil-slope domatic on, easily from the soil particle hole, penetrate into inside soil body, fill the hole between soil particle and wrap up soil particle, evaporation along with moisture, curing compound forms spacial framework on soil particle surface and inside, refer to Fig. 1, soil particle and grass seeds are bonded to network-like structural entity, thereby form certain thickness cured layer on soil body top layer, the reticular membrane structure that this composite curing agent forms can be laid in moisture, promote vegetation growth, after the grass seeds growth, vegetation root system extends in inside soil body crisscrossly, further strengthened the net structure of the domatic cured layer of soil-slope, referred to Fig. 2, simultaneously the leaf of vegetation cover soil-slope domatic on, can reduce to a great extent soil-slope domatic by rain drop erosion, realize the ecology reinforcing that soil-slope is domatic under the synergy of composite curing agent and vegetation.
The present invention compared with prior art its remarkable advantage is: the one, and the present invention has adopted composite curing agent, can effectively solve the problems such as soil-slope the erosion caused by sloping surfaces, soil erosion, vegetation deterioration, domatic unstability; The 2nd, application the present invention reinforce rear formed ecological cured layer and have good scour resistance, wind resistance, water stability, and water conservation, ventilative and be beneficial to the function such as vegetation growth; The 3rd, the present invention combines composite curing agent with vegetation, has brought into play fabulous synergy, has really highlighted the benefit of ecological, environmental protective; The 4th, method easy construction of the present invention, engineering cost are low, practical, ecological, environmental protective.The present invention can be widely used in the domatic ecology of the soil-slopes such as highway, bunding and reinforce; also can be applicable to the fields such as mine ecological restoration, Project Areas ecological management; be specially adapted to extensive environmental construction construction works, there is good Social benefit and economic benefit.
The accompanying drawing explanation
Fig. 1 is that the application composite curing agent that the present invention proposes is implemented ecological curing mechanism schematic diagram.
Fig. 2 is that the application composite curing agent that the present invention proposes is implemented the ecological structural representation of reinforcing of side slope surface.
The specific embodiment
Below in conjunction with embodiment, the specific embodiment of the present invention is described in further detail.
A kind of composite curing agent that the present invention proposes is to the domatic ecological method of reinforcing of soil-slope, and it comprises the following steps:
Step 1, domatic leveling: adopt machinery or manually to natural side slope or Artificial Side-slope, have obvious coombe or out-of-flatness place to carry out domatic leveling;
Step 2 adds the solid-liquid preparation: at first by mass percentage: 5-20% polymeric consolidator, 5-10% mud and 70-90% water are evenly mixed, then with the grass seeds uniform stirring, form composite curing agent, wherein the addition of grass seeds is 25-35g/m
2domatic;
Described polymeric consolidator is polyurethane curing agent and the water-loss reducer intermixture of 9:1-15:1 in mass ratio, its viscosity be 600-1200mpa.s, hardening time 6-8h, pH value 6-8;
Described polyurethane curing agent is that diol mixture will and toluene di-isocyanate(TDI) carry out polycondensation reaction after the 2:1-3.5:1 configuration in mass ratio, obtains base polyurethane prepolymer for use as; Again will be by mass fraction: 10-20 part base polyurethane prepolymer for use as and 30-35 part ethyl acetate, 1-1.5 part lauryl sodium sulfate be configured and fully stir, and make the polyurethane curing agent finished product; Described diol mixture will by Polyoxypropylene diol and polyoxyethylene glycol in mass ratio 1:3.5-1:5 form, wherein: the number-average molecular weight of Polyoxypropylene diol is 4000, the number-average molecular weight of polyoxyethylene glycol is 2000.
Described water-loss reducer be a kind of solid shape, water absorbing capacity 200-300 doubly and the good super absorbent resin of reproducibility;
The component of described mud is, comprises according to the mass fraction: 30-40 part swell soil, 10-15 part KCl, 2-4 part KOH, 1-1.5 part defoamer and 40-50 part water;
Step 3, add solid-liquid and spray: the composite curing agent that step 2 is obtained is by 4-5L/m
2it is domatic upper that the sprinkling amount is sprayed at soil-slope, makes the domatic upper formation cured layer of soil-slope; Described cured layer thickness is 5-15cm;
Step 4, the side slope maintenance: provide sufficient moisture before and after grass seeds germinates, impel vegetation growth, the cured layer synergy that makes vegetation root system and step 3 obtain, thus realize domatic ecological reinforcing of soil-slope;
Step 5, assessment is safeguarded: step 4 is realized to the ecological consolidation effects such as the domatic damaged condition of soil-slope after ecological reinforcing the, vegetation growth situation carry out periodical evaluation, to append maintaining.
The speedway soil-slope test section of now take is example, further describes the specific embodiment of the present invention and application performance Measurement results thereof.
The concrete implementation step of the present embodiment and require the samely, wherein the part design parameter is as follows:
Speedway soil-slope test section: length of grade is 20 meters, 10 meters, domatic hypotenuse, 35 ° of slope angles, slope reinforcing gross area 200m
2; Add solid-liquid by mass percentage: 20% polymeric consolidator, 5% mud and 75% water, adding solid-liquid sprinkling amount is 5L/m
2domatic, polymeric consolidator is polyurethane curing agent and the water-loss reducer intermixture of 9:1 in mass ratio, and grass seeds is for waiting Bermuda grass, Bai Sanye, paspalum notatum and the pomegranate chrysanthemum of mass ratio, grass seeds consumption 25g/m
2domatic; Test section adds the total consumption 1000L of solid-liquid, and it is as shown in table 1 that preparation adds each component institute expense of solid-liquid.
Table 1 test section adds the consumption of each component in solid-liquid
The thickness of speedway soil-slope test section cured layer is 10.5cm, this test section domatic recruitment evaluation through 1 month, 3 months, 6 months, 12 months after reinforcing, result all shows that domatic soil particle is complete, the vestige of washing away is not arranged, vegetation is evenly distributed and riotous growth, reaches good domatic ecological consolidation effect.
The present invention, through field demonstration repeatedly, has obtained satisfied effect.Composite curing agent of the present invention refers to table 2 to the excellent properties of the domatic ecological method of reinforcing of soil-slope.
Table 2 the present invention and existing polymeric consolidator method for reinforcing side slope contrast table
The above specific embodiment and embodiment are the concrete supports to the technological thought of the domatic ecological method of reinforcing of soil-slope of a kind of composite curing agent that application the present invention is proposed; can not limit protection scope of the present invention with this; every technological thought proposed according to the present invention; the change of any equivalent variations of doing on the technical program basis or equivalence, all still belong to the scope that technical solution of the present invention is protected.
Claims (7)
1. a composite curing agent, to the domatic ecological method of reinforcing of soil-slope, is characterized in that comprising the following steps:
Step 1, domatic leveling: adopt machinery or manually to natural side slope or Artificial Side-slope, have obvious coombe or out-of-flatness place to carry out domatic leveling;
Step 2 adds the solid-liquid preparation: at first by mass percentage: 5-20% polymeric consolidator, 5-10% mud and 70-90% water are evenly mixed, then with the grass seeds uniform stirring, form composite curing agent, wherein the addition of grass seeds is 25-35g/m
2domatic;
Step 3, add solid-liquid and spray: the composite curing agent that step 2 is obtained is by 4-5 L/m
2it is domatic upper that domatic sprinkling amount is sprayed at soil-slope, makes the domatic upper formation cured layer of soil-slope;
Step 4, the side slope maintenance: provide sufficient moisture before and after grass seeds germinates, impel vegetation growth, the cured layer synergy that makes vegetation root system and step 3 obtain, thus realize domatic ecological reinforcing of soil-slope;
Step 5, assessment is safeguarded: step 4 is realized to the ecological consolidation effects such as the domatic damaged condition of soil-slope after ecological reinforcing the, vegetation growth situation carry out periodical evaluation, to append maintaining.
2. a kind of composite curing agent according to claim 1 is to the domatic ecological method of reinforcing of soil-slope, it is characterized in that the described polymeric consolidator of step 2 is polyurethane curing agent and the water-loss reducer intermixture of 9:1-15:1 in mass ratio, its viscosity be 600-1200 mpa.s, hardening time 6-8h, pH value 6-8.
3. a kind of composite curing agent according to claim 1 is to the domatic ecological method of reinforcing of soil-slope, the component that it is characterized in that the described mud of step 2 is to comprise according to the mass fraction: 30-40 part swell soil, 10-15 part KCl, 2-4 part KOH, 1-1.5 part defoamer and 40-50 part water.
4. a kind of composite curing agent according to claim 1, to the domatic ecological method of reinforcing of soil-slope, is characterized in that the described grass seeds of step 2 one or more mixtures in any proportion in Bermuda grass, Bai Sanye, paspalum notatum, pomegranate chrysanthemum, shrub lespedeza.
5. a kind of composite curing agent according to claim 1, to the domatic ecological method of reinforcing of soil-slope, is characterized in that the described cured layer thickness of step 3 is 5-15cm.
6. a kind of composite curing agent according to claim 2 is to the domatic ecological method of reinforcing of soil-slope, it is characterized in that described polyurethane curing agent is that diol mixture will and toluene di-isocyanate(TDI) carry out polycondensation reaction after the 2:1-3.5:1 configuration in mass ratio, obtains base polyurethane prepolymer for use as; Again will be by mass fraction: 10-20 part base polyurethane prepolymer for use as and 30-35 part ethyl acetate, 1-1.5 part lauryl sodium sulfate be configured and fully stir, and make the polyurethane curing agent finished product; Described diol mixture will by Polyoxypropylene diol and polyoxyethylene glycol in mass ratio 1:3.5-1:5 form, wherein: the number-average molecular weight of Polyoxypropylene diol is 4000, the number-average molecular weight of polyoxyethylene glycol is 2000.
7. a kind of composite curing agent according to claim 2 is to the domatic ecological method of reinforcing of soil-slope, it is characterized in that described water-loss reducer be a kind of solid shape, water absorbing capacity 200-300 doubly and the good super absorbent resin of reproducibility.
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Cited By (11)
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| CN103806439A (en) * | 2014-03-03 | 2014-05-21 | 中国科学院地质与地球物理研究所 | Novel rock-soil body side slope ecological restoration and corrosion resistance stabilizer |
| CN103821153A (en) * | 2014-01-10 | 2014-05-28 | 东南大学 | Arsenic sandstone slope treating method |
| CN105862889A (en) * | 2016-05-19 | 2016-08-17 | 成都理工大学 | Soil slope protection method |
| CN106284278A (en) * | 2016-08-31 | 2017-01-04 | 河海大学 | A kind of ecological reestablishment for soil-body landslide and evaluation methodology |
| CN106349864A (en) * | 2016-07-29 | 2017-01-25 | 神盾防火科技有限公司 | Slope protective colloid |
| CN106555388A (en) * | 2016-10-13 | 2017-04-05 | 河海大学 | Composite ventilating water conservation layer and the channel comprising composite ventilating water conservation layer and laying process |
| CN108797612A (en) * | 2018-06-19 | 2018-11-13 | 江苏东珠景观股份有限公司 | A kind of high stability side slope vertical planting ecological restoring method |
| CN109874445A (en) * | 2019-04-25 | 2019-06-14 | 中国科学院、水利部成都山地灾害与环境研究所 | A kind of restoration and reconstruction method being retained soil against corrosion for engineering slope |
| CN109942783A (en) * | 2019-02-22 | 2019-06-28 | 上海稻畑精细化工有限公司 | A kind of high stability polyurethane curing agent and its preparation process |
| CN111233380A (en) * | 2020-02-24 | 2020-06-05 | 长安大学 | Loess slope surface protection material and preparation and use method thereof |
| CN112726637A (en) * | 2020-12-11 | 2021-04-30 | 黄河水利委员会黄河水利科学研究院 | Ecological slope protection method applied to sand gravel side slope |
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Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103806439A (en) * | 2014-03-03 | 2014-05-21 | 中国科学院地质与地球物理研究所 | Novel rock-soil body side slope ecological restoration and corrosion resistance stabilizer |
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| CN105862889B (en) * | 2016-05-19 | 2018-06-19 | 成都理工大学 | A kind of soil-slope bank protecting method |
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| CN106284278A (en) * | 2016-08-31 | 2017-01-04 | 河海大学 | A kind of ecological reestablishment for soil-body landslide and evaluation methodology |
| CN106555388A (en) * | 2016-10-13 | 2017-04-05 | 河海大学 | Composite ventilating water conservation layer and the channel comprising composite ventilating water conservation layer and laying process |
| CN108797612A (en) * | 2018-06-19 | 2018-11-13 | 江苏东珠景观股份有限公司 | A kind of high stability side slope vertical planting ecological restoring method |
| CN108797612B (en) * | 2018-06-19 | 2020-09-04 | 东珠生态环保股份有限公司 | High-stability slope three-dimensional greening ecological restoration method |
| CN109942783A (en) * | 2019-02-22 | 2019-06-28 | 上海稻畑精细化工有限公司 | A kind of high stability polyurethane curing agent and its preparation process |
| CN109874445A (en) * | 2019-04-25 | 2019-06-14 | 中国科学院、水利部成都山地灾害与环境研究所 | A kind of restoration and reconstruction method being retained soil against corrosion for engineering slope |
| CN111233380A (en) * | 2020-02-24 | 2020-06-05 | 长安大学 | Loess slope surface protection material and preparation and use method thereof |
| CN112726637A (en) * | 2020-12-11 | 2021-04-30 | 黄河水利委员会黄河水利科学研究院 | Ecological slope protection method applied to sand gravel side slope |
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